[INFO] cloning repository https://github.com/nwoeanhinnogaehr/flow-synth [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nwoeanhinnogaehr/flow-synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnwoeanhinnogaehr%2Fflow-synth", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnwoeanhinnogaehr%2Fflow-synth'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2dc911b383ab53eeae1ebfae59c031aa360a349f [INFO] documenting nwoeanhinnogaehr/flow-synth against 1.46.0 for beta-1.47-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnwoeanhinnogaehr%2Fflow-synth" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/nwoeanhinnogaehr/flow-synth on toolchain 1.46.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/nwoeanhinnogaehr/flow-synth [INFO] finished tweaking git repo https://github.com/nwoeanhinnogaehr/flow-synth [INFO] tweaked toml for git repo https://github.com/nwoeanhinnogaehr/flow-synth written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/nwoeanhinnogaehr/flow-synth already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 03f5f43169837f71dc4119c6bd4f469b61d884c8c981c2284943995dac32d764 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "03f5f43169837f71dc4119c6bd4f469b61d884c8c981c2284943995dac32d764", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "03f5f43169837f71dc4119c6bd4f469b61d884c8c981c2284943995dac32d764", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "03f5f43169837f71dc4119c6bd4f469b61d884c8c981c2284943995dac32d764", kill_on_drop: false }` [INFO] [stdout] 03f5f43169837f71dc4119c6bd4f469b61d884c8c981c2284943995dac32d764 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 4e638637998540d5a46884aab6778b6a984964aa7578700ae43c50102d2ccdd2 [INFO] running `Command { std: "docker" "start" "-a" "4e638637998540d5a46884aab6778b6a984964aa7578700ae43c50102d2ccdd2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling xml-rs v0.8.0 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling syn v0.15.39 [INFO] [stderr] Checking either v1.5.2 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Checking same-file v1.0.4 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Checking downcast-rs v1.0.4 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Compiling libloading v0.4.3 [INFO] [stderr] Compiling serde v1.0.94 [INFO] [stderr] Checking xi-unicode v0.1.0 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Compiling matrixmultiply v0.1.15 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Checking rustc-demangle v0.1.15 [INFO] [stderr] Checking rawpointer v0.1.0 [INFO] [stderr] Compiling ndarray v0.12.1 [INFO] [stderr] Checking hashbrown v0.5.0 [INFO] [stderr] Checking cassowary v0.3.0 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Compiling libloading v0.5.1 [INFO] [stderr] Compiling backtrace-sys v0.1.30 [INFO] [stderr] Compiling x11-dl v2.18.3 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking walkdir v2.2.8 [INFO] [stderr] Checking futures-core-preview v0.2.3 [INFO] [stderr] Checking itertools v0.7.11 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling num-complex v0.2.3 [INFO] [stderr] Compiling num-rational v0.2.2 [INFO] [stderr] Compiling num-iter v0.1.39 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking rustc-hash v1.0.1 [INFO] [stderr] Checking stb_truetype v0.2.6 [INFO] [stderr] Checking base64 v0.10.1 [INFO] [stderr] Checking futures-channel-preview v0.2.2 [INFO] [stderr] Checking draw_state v0.8.0 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling gl_generator v0.11.0 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Checking crossbeam-queue v0.1.2 [INFO] [stderr] Compiling wayland-scanner v0.21.13 [INFO] [stderr] Checking futures-sink-preview v0.2.2 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking dlib v0.4.1 [INFO] [stderr] Checking wayland-sys v0.21.13 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking nix v0.14.1 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking shared_library v0.1.9 [INFO] [stderr] Checking inotify-sys v0.1.3 [INFO] [stderr] Checking filetime v0.2.5 [INFO] [stderr] Checking jack-sys v0.2.0 [INFO] [stderr] Compiling nfd v0.0.4 [INFO] [stderr] Checking crossbeam-deque v0.7.1 [INFO] [stderr] Checking futures-io-preview v0.2.2 [INFO] [stderr] Checking inotify v0.6.1 [INFO] [stderr] Checking backtrace v0.3.32 [INFO] [stderr] Checking osmesa-sys v0.1.2 [INFO] [stderr] Checking jack v0.6.0 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking futures-util-preview v0.2.2 [INFO] [stderr] Checking crossbeam v0.7.1 [INFO] [stderr] Compiling glutin_egl_sys v0.1.3 [INFO] [stderr] Compiling gfx_gl v0.6.0 [INFO] [stderr] Compiling glutin_glx_sys v0.1.5 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking ordered-float v1.0.2 [INFO] [stderr] Checking line_drawing v0.7.0 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Checking rusttype v0.7.7 [INFO] [stderr] Checking twox-hash v1.4.1 [INFO] [stderr] Checking notify v4.0.12 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking andrew v0.2.1 [INFO] [stderr] Checking glyph_brush_layout v0.1.6 [INFO] [stderr] Checking futures-executor-preview v0.2.2 [INFO] [stderr] Compiling wayland-client v0.21.13 [INFO] [stderr] Compiling wayland-protocols v0.21.13 [INFO] [stderr] Checking glyph_brush v0.5.3 [INFO] [stderr] Checking futures-stable-preview v0.2.3 [INFO] [stderr] Checking futures-async-runtime-preview v0.2.3 [INFO] [stderr] Checking futures-preview v0.2.2 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking wayland-commons v0.21.13 [INFO] [stderr] Compiling derivative v1.0.2 [INFO] [stderr] Compiling serde_derive v1.0.94 [INFO] [stderr] Checking gfx_core v0.9.1 [INFO] [stderr] Checking smithay-client-toolkit v0.4.6 [INFO] [stderr] Checking winit v0.19.1 [INFO] [stderr] Checking gfx_device_gl v0.16.1 [INFO] [stderr] Checking gfx v0.18.1 [INFO] [stderr] Checking gfx_glyph v0.15.0 [INFO] [stderr] Checking glutin v0.21.0 [INFO] [stderr] Checking gfx_window_glutin v0.31.0 [INFO] [stderr] Checking ron v0.5.1 [INFO] [stderr] Documenting flow-synth v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(specialization)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:2:1 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(plugin)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:3:1 [INFO] [stdout] | [INFO] [stdout] 3 | #![feature(const_fn)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #![feature(generators)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:5:1 [INFO] [stdout] | [INFO] [stdout] 5 | #![feature(generator_trait)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:6:1 [INFO] [stdout] | [INFO] [stdout] 6 | #![feature(libc)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:7:1 [INFO] [stdout] | [INFO] [stdout] 7 | #![feature(drain_filter)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:8:1 [INFO] [stdout] | [INFO] [stdout] 8 | #![feature(nll)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:9:1 [INFO] [stdout] | [INFO] [stdout] 9 | #![feature(arbitrary_self_types)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:10:1 [INFO] [stdout] | [INFO] [stdout] 10 | #![feature(never_type)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:11:1 [INFO] [stdout] | [INFO] [stdout] 11 | #![feature(async_await)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/main.rs:12:1 [INFO] [stdout] | [INFO] [stdout] 12 | #![feature(atomic_min_max)] [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: Compilation failed, aborting rustdoc [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 13 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: Could not document `flow-synth`. [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustdoc --crate-type bin --crate-name flow_synth src/main.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern cassowary=/opt/rustwide/target/debug/deps/libcassowary-83cdef69d4649bd7.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-b5234afc747ba2c9.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-2c6ceccf3f8fb344.rmeta --extern gfx=/opt/rustwide/target/debug/deps/libgfx-45d931e2e77976b9.rmeta --extern gfx_device_gl=/opt/rustwide/target/debug/deps/libgfx_device_gl-c1487ae3f3b1de83.rmeta --extern gfx_glyph=/opt/rustwide/target/debug/deps/libgfx_glyph-dbde90eb6fd9cf1f.rmeta --extern gfx_window_glutin=/opt/rustwide/target/debug/deps/libgfx_window_glutin-fec99964066ec57b.rmeta --extern glutin=/opt/rustwide/target/debug/deps/libglutin-195c24eb10cc33a8.rmeta --extern jack=/opt/rustwide/target/debug/deps/libjack-890c58ce75acda7d.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-6b3bb2208fb7e635.rmeta --extern nfd=/opt/rustwide/target/debug/deps/libnfd-3265e5a11a25e2c4.rmeta --extern notify=/opt/rustwide/target/debug/deps/libnotify-e0263d87f7d5f8f3.rmeta --extern num=/opt/rustwide/target/debug/deps/libnum-9d63a30b9c904ec4.rmeta --extern ron=/opt/rustwide/target/debug/deps/libron-8e1f4af9f759f623.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-d64eb26863eb6768.rmeta --extern serde_derive=/opt/rustwide/target/debug/deps/libserde_derive-e7283208b25e91ac.so --cap-lints=warn` (exit code: 1) [INFO] running `Command { std: "docker" "inspect" "4e638637998540d5a46884aab6778b6a984964aa7578700ae43c50102d2ccdd2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e638637998540d5a46884aab6778b6a984964aa7578700ae43c50102d2ccdd2", kill_on_drop: false }` [INFO] [stdout] 4e638637998540d5a46884aab6778b6a984964aa7578700ae43c50102d2ccdd2